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Commit a08c22c0 authored by Sven Eckelmann's avatar Sven Eckelmann Committed by Jiri Kosina
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HID: sony: Add force feedback support for Dualshock3 USB 



Sony Dualshock 3 controllers have two motors which can be used to provide
simple force feedback rumble effects. The right motor is can be used to create
a weak rumble effect but does not allow to set the force. The left motor is
used to create a strong rumble effect with adjustable intensity.

The state of both motors can be changed using HID_OUTPUT_REPORT packets and
have no timing information. FF memless is used to keep track of the timing and
the sony driver just generates the necessary URBs.

Signed-off-by: default avatarSven Eckelmann <sven@narfation.org>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent ae2aa3a5

drivers/hid/Kconfig

+8 −0
Original line number Diff line number Diff line
@@ -613,6 +613,14 @@ config HID_SONY 
	  * Sony PS3 Blue-ray Disk Remote Control (Bluetooth)

	  * Logitech Harmony adapter for Sony Playstation 3 (Bluetooth)



config SONY_FF

	bool "Sony PS2/3 accessories force feedback support"

	depends on HID_SONY

	select INPUT_FF_MEMLESS

	---help---

	Say Y here if you have a Sony PS2/3 accessory and want to enable force

	feedback support for it.



config HID_SPEEDLINK

	tristate "Speedlink VAD Cezanne mouse support"

	depends on HID

drivers/hid/hid-sony.c

+52 −0
Original line number Diff line number Diff line
@@ -614,6 +614,54 @@ static void buzz_remove(struct hid_device *hdev) 
	drv_data->extra = NULL;

}



#ifdef CONFIG_SONY_FF

static int sony_play_effect(struct input_dev *dev, void *data,

			    struct ff_effect *effect)

{

	unsigned char buf[] = {

		0x01,

		0x00, 0xff, 0x00, 0xff, 0x00,

		0x00, 0x00, 0x00, 0x00, 0x03,

		0xff, 0x27, 0x10, 0x00, 0x32,

		0xff, 0x27, 0x10, 0x00, 0x32,

		0xff, 0x27, 0x10, 0x00, 0x32,

		0xff, 0x27, 0x10, 0x00, 0x32,

		0x00, 0x00, 0x00, 0x00, 0x00

	};

	__u8 left;

	__u8 right;

	struct hid_device *hid = input_get_drvdata(dev);



	if (effect->type != FF_RUMBLE)

		return 0;



	left = effect->u.rumble.strong_magnitude / 256;

	right = effect->u.rumble.weak_magnitude ? 1 : 0;



	buf[3] = right;

	buf[5] = left;



	return hid->hid_output_raw_report(hid, buf, sizeof(buf),

					  HID_OUTPUT_REPORT);

}



static int sony_init_ff(struct hid_device *hdev)

{

	struct hid_input *hidinput = list_entry(hdev->inputs.next,

						struct hid_input, list);

	struct input_dev *input_dev = hidinput->input;



	input_set_capability(input_dev, EV_FF, FF_RUMBLE);

	return input_ff_create_memless(input_dev, NULL, sony_play_effect);

}



#else

static int sony_init_ff(struct hid_device *hdev)

{

	return 0;

}

#endif



static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)

{

	int ret;
@@ -663,6 +711,10 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id) 
	if (ret < 0)

		goto err_stop;



	ret = sony_init_ff(hdev);

	if (ret < 0)

		goto err_stop;



	return 0;

err_stop:

	hid_hw_stop(hdev);